Gaggia SUP 049, Service Manual

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GAGGIA CADORNA 03 OPERATING LOGIC
6/6
“Descaling” – message with water filter inserted
(appliances with display only)
The water hardness is set on the basis of the regional
water hardness analysis
(1, 2, 3, 4).
Filter off:
If the function is turned off the electronics assembly
monitors the flow meter pulses, recording one pulse
each turn.
Filter on:
If the function is turned on the electronics assembly
monitors the flow meter pulses, recording one pulse
every two turns.
“Change water filter” message
The electronics assembly uses the flow meter impulses
to keep track of the amount of water which has flowed
through; after the specified amount (set in accordance
with the water hardness level), the “Replace filter”
message appears.
360°
1 rev
Number of pulses
Filter
on
Filter
off
Flow meter pulses
3.9. Descaling request
Bypass
3.10. Water filter
Function:
• Reduced limescale deposits which take longer to form.
• Improved water quality.
• Improved taste due to the ideal water hardness.
Life span / descaling performance:
• - 10 ° dH
• 60 litres
• 2 months
To achieve the best possible operating mode consistency over
the total life span, the water is channelled using a 3-stage bypass
(A, B, C) depending on the degree of hardness. See small image.
Descaling cycle frequency
Hardness WATER HARDNESS Without water filter With water filter
1 Soft (up to 7°dH) 240 litres 480 litres
2 Medium (7° - 14°dH) 120 litres 240 litres
3 Hard (15° - 21°dH) 60 litres 120 litres
4 Very hard (over 21°dH) 30 litres 60 litres
The default water hardness level is 4. Each litre of water corresponds to approximately 1936 pulses.
3.11. Descaling cycle frequency